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United States Patent | 6,139,933 |
Van Wijk | October 31, 2000 |
The invention relates to an optical recording medium, in particular to a compact disc, comprising the following layers: a) a transparent substrate with a spiral having an indented or protruding geometry; superposed by b) a recording layer; optionally superposed by c) a protective coating, wherein the recording layer comprises a partially transparent layer; superposed by a transparent buffer layer comprising a cross-linked material; superposed by a thick layer, said layers forming together a Fabry-Perot etalon.
Inventors: | Van Wijk; Freddy Gerhard Hedrikus (Arnhem, NL) |
Assignee: | Akzo Nobel N. V. (NL) |
Appl. No.: | 254177 |
Filed: | October 12, 1999 |
PCT Filed: | September 2, 1997 |
PCT NO: | PCT/EP97/04883 |
371 Date: | October 12, 1999 |
102(e) Date: | October 12, 1999 |
PCT PUB.NO.: | WO98/10416 |
PCT PUB. Date: | March 12, 1998 |
Sep 02, 1996[EP] | 96202437 |
Current U.S. Class: | 428/64.1; 369/275.1; 369/283; 369/288; 428/64.2; 428/64.4; 428/457; 428/913; 430/270.12; 430/495.1; 430/945 |
Intern'l Class: | B32B 003/02 |
Field of Search: | 428/64.1,64.2,64.4,457,913 430/270.12,495.1,945 369/275.1,275.4,283,288 |
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